1,1'-二羟基-5,5'-联四唑的镧系金属配合物的合成、表征及热行为 |
Synthesis, Characterization and Thermal Behavior of Lanthanide Metal Complexes Based on 1H,1'H-5,5'-Bitetrazole-1,1'-diolate |
|
摘要: 以1,1'-二羟基-5,5'-联四唑(H2BTO)为配体,镧系金属离子作为金属中心,采用溶剂热法制备了5种金属配合物:[La2(BTO)3(H2O)8]·2H2O (1)、[Ce2(BTO)3(H2O)8]·2H2O (2)、[Pr2(BTO)3(H2O)8]·2H2O (3)、[Sm2(BTO)3(H2O)8]·2H2O (4)和[Nd2(BTO)3(DMF)4]·6H2O (5)。通过单晶X射线衍射和元素分析对5种配合物的结构进行了表征。结果表明,5种配合物均属于单斜晶系,P21/n空间群。利用差示扫描量热法研究了配合物1~4的热稳定性,采用Kissinger法和Ozawa法分别计算了其热分解动力学参数。 |
关键词: 含能材料 镧系金属配合物 1,1'-二羟基-5,5'-联四唑 晶体结构 热分析 |
基金项目: 国家自然科学基金(No.21875192)、四川省杰出青年科技人才计划(No.19JCQN0085)、四川省科技厅应用基础研究项目(No.2019YJ0355)和环境友好能源材料国家重点实验室开放基金(No.20fksy16)资助。 |
Abstract: Five lanthanide metal complexes,[La2(BTO)3(H2O)8]·2H2O (1),[Ce2(BTO)3(H2O)8]·2H2O (2),[Pr2(BTO)3(H2O)8]·2H2O (3),[Sm2(BTO)3(H2O)8]·2H2O (4) and[Nd2(BTO)3(DMF)4]·6H2O (5), were synthesized by solvothermal method with 1H,1'H-5,5'-bitetrazole-1,1'-diolate (H2BTO) as ligand and lanthanide metal ions as metal centers. The structures of five complexes were characterized by single crystal X-ray diffraction and elemental analysis. The results show that all the complexes belong to monoclinic system, P21/n space group. The thermal stability of complexes 1~4 was investigated by differential scanning calorimetry. And their kinetic parameters of thermal decomposition were calculated by Kissinger method and Ozawa method, respectively. |
Keywords: energetic materials lanthanide metal complexes 1H,1'H-5,5'-bitetrazole-1,1'-diolate crystal structure thermal analysis |
投稿时间:2021-04-12 修订日期:2021-05-13 |
摘要点击次数: 1328 |
全文下载次数: 1101 |
罗利琼,王从军,沈娟,金波,彭汝芳.1,1'-二羟基-5,5'-联四唑的镧系金属配合物的合成、表征及热行为[J].无机化学学报,2021,37(9):1529-1535. |
查看全文 查看/发表评论 下载PDF阅读器 |
Support information: 相关附件: file210174_支撑材料.docx |
|
|
|